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Marquise|Lab Grown|IGI

0.73ct E SI1 Marquise Lab Grown Diamond

ID • E/SI1 • IGI LG530295905

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG530295905

Diamond specifications and retailer prices

From £125 GBP
$166 USD
As of October 27, 2026
Save £601 GBP (83%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £726 GBP at MOH London · As of October 29, 2026
View at MOH London

About this 0.73ct lab-grown marquise diamond

This 0.73ct lab-grown marquise sits in the half to three-quarter carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG530295905 or 530295905. Listed at 13 retailers as of October 27, 2026, with prices from £125 to £726, a £601 spread on the same certified stone. MOH London lists it at £726. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

0.73
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.2°
Pavilion angle38.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG530295905
Dimensions9.76 × 4.74 × 2.72 mm
L/W Ratio2.06
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
9.76 mm4.74 mm0.73 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG530295905
Side View
Table 62.5%Crown 32.2°Girdle: MED-STKPavilion 38.1°Culet: NoneDepth 57.4%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 27
Current: £726 GBP|Low: £98 GBP|High: £731 GBP|Avg: £310 GBP|+0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 29, 2026
Retailer 6£125 GBP
Retailer 4£139 GBP
Retailer 11£144 GBP
Retailer 8£155 GBP
Retailer 12£155 GBP
Retailer 2£273 GBP
Retailer 10£279 GBP
Retailer 3£327 GBP
Retailer 7£406 GBP
Retailer 9£496 GBP
Retailer 5£524 GBP
MOH London£726 GBP

43 data points across 12 retailers

13 retailers£125 GBP to £726 GBP

A
Cheapest Retailer
-
£125 GBP
$166 USD
A
Retailer 2
-
£139 GBP
$185 USD
View
Final sale: no returns
A
Retailer 3
-
£144 GBP
$192 USD
View
A
Retailer 4
-
£155 GBP
$206 USD
View
A
Retailer 5
-
£155 GBP
$206 USD
View
B+
Retailer 6
-
£273 GBP
View
B+
Retailer 7
-
£279 GBP
$371 USD
View
B+
Retailer 8
-
£308 GBP
HK$3,200 HKD
View
B+
Retailer 9
-
£327 GBP
$436 USD
View
B
Retailer 10
-
£406 GBP
$540 USD
View
B
Retailer 11
-
£496 GBP
$661 USD
View
B
Retailer 12
-
£524 GBP
$698 USD
View
Most Expensive
B
MOH London
LG530295905 · Oct 29
£726 GBP
View
12 more retailers have this diamond
Prices start from £125 GBPSave up to £601 GBP

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
0.73ct Marquise
£125 GBP